Maequis d



(No Model.)

. Patented July 8,1883.

UNITED STATES PATENT ries.

MARQUIS D. L. SVVANK AND JASPER T. THORNLEY, OF ANDERSON, IND.

STOP-VALVE.

SPECIFICATION forming part of Letters Patent No. 280,413, dated July 3,1883.

' Application filed October 7, 1882. (No model.)

To all whom it may concern Be it known that we, MARQUIS D. L. SWANK andJASPER T. THORNLEY, citizens of the United States, residing at Anderson,in the county of Madison and State of Indiana, have invented certain newand useful Improvements in Stop or Relief Valves; and we do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to the let ters and figures of reference marked thereon, which forma part of this specification.

Our invention relates to an improvement in a stop or relief valve; andthe novelty c011- sists in the construction and arrangement of parts,which will be more fully hereinafter set forth, and specifically pointedoutin the claim.

The object of our invention is to provide a means by which, when thedevice is located in the center or at any convenient point on a pipeconnected with a water-tank or steamboiler, it may be used both as astop and re lief valve, either for the purpose of exhausting steam fromthe boiler or allowing water to flow from the tank, or vice versa, andit may be placed between the check-valve of a pump and the boiler orother similar apparatus where a stop or relief valve or cock is requiredto open and close pipes from opposite directions, but from only onedirection at the same time,

The invention consists, essentially, in a cast ing, of proper metal,having vertical and horizontal passages which cross each other at rightangles, and representing the junction of vertical and horizontal pipes,in which is placed the stop or relief plug or key. The top of the casecontaining said plug is provided with flanges on opposite sides for thepurpose of securing a cap by two screws one on each side-the cap havinga collar on its lower surface, which impinges on a corresponding collarof the plug or key, by means of which the plug may be lockedin anydirection by tight ening the screws whereby thecap is secured to thecase or main body of the device. The cap having an aperture to receivethe plug, and two recesses on either side, opposite each other, of saidaperture, is countersunk to in the cap, and has a shoulder, by means ofwhich it is retained in position in the case, is tubular nearlytwo-thirds of its length, the outside tapers slightly downward tocorrespond with its case or casting, and has a recess formed upon one ofits sides nearly to the center of its diameter, which connects with itstubular recess.

Referring to the drawings, Figure 1 repr'e sents a central verticalsection, and Fig. 2 de tail perspective views, of our invention.

To enable others skilled in the art to make and use the same, referenceis made to the accompanying drawings, which. form a part of thisspecification.

A represents the main body or case, with collar a; G, the cap, providedwith aperture 0, to correspond with journal 0 of a plug or key, andhaving apertures d d countersunk for heads of screws, and collar e onthe lower surface.

D represents the entrance or exit from one direction, and E entrance orexit from another or opposite direction, and F outlet for the es cape ofsteam and water, or either.

G represents the-plug or key, having recessed opening 11 to correspondwith apertures D and E in the case, to allow, when the recess is" at theoutlet F, but effecti'lally stops and closes 5 the port E; and it may bechanged to open the port E and close the port D, allowing water or steamto flow through the channel of exit F. This device cannot be used toclose both ports D and F at the same time.

What I claim as new, and desire to secure In testimony whereof we affixoursignatures by Letters Patent, 1'sin presence of two witnesses.

Th 1i and K? 1 *in d ri d 2 3 f I be MARQUIS 1). L. SWANK. (onslsmng ofa eastmg hm 111g ports 1), 1n, and TA SPFR THORNLFY F, the plug G,having recessed opening H, J J

and the cap 0, having collar (1, the whole 0011- \Vitnesses: struetedand zlrramgml as and 'lertxhe purposes THOMAS B. ORR, set forth. HOWELL1). THOMPSON.

